Shaping device for tire-carcasses.



F. C MORTON.

SHAPING DEVICE FOR TIRE CARCASS ES. APPLICATION mu) DEC-3h19\3.

Patented Soph 1?, 19 18 I ED; STATES PATENT OFFICE. j

en cgc. non'ron, drummer; MASSACHUSETTS? ABSIGNOB or dim-HALF I 7 rnnn nun'ronomrsnn; or onA'NsroN, :erronn ISLAND, AND ON'E-IQUBTE mo 'rnnoooaym'rmn a RUBBER 00., or AKRON, OHIO, A coaPonArmnor onto.

To alhw'hom it may concern:

Be it known that I, Fnnomlo G. MORTON,

. a citizen ofthe United StateSQrcSidinfginJ Cambridge; in the county of 'Middlesex and '6 'State of Massachusetts, have invented an Improvement in Shaping Devices for Tire- Carcasscs, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The present inventionrelates to tire building machineryendisonbtditti' in a novel construction and arran ment of the chap ing or spinning-in device which is used to i 16 smooth the fabric and shape it on the sides of the core after the .r'abricfhas been laid on the periphery of said core, these devices be ing. sometimes described as stitching devices,

The purpose of the invention is to hasten and facilitate the spilming in or stitching process, without, however, making the 0poration wholl automatic, since better results can us'u'a ly lie-obtained hyhaving'the actual operation oi smoothing down or shaping the fabric under thecontrol. of a skilled workman; i

In building a tire carcass in connection withthe" m tains, stri over the surface of a rotatable core and partly shaped over the outer periphery of. said corehile the said'core is slowly r0 tated to ethod toawhich this invention per;

' has been, carried ivholliy around v fothe periphery of said core, the sides of theitibric are pressed into contact with the sides of the coreby means of devices which. Ishall'hereinafter term spinners, which may consist of rotating disks, theperipheries of HWhiIch ilre held in contact with the .fabric on "the 'co're, while the disks thel'nsi-alves areaxes toward the aide of rotz-u irm of the core. l'nthe s11inning-in operation, the disks are brought into contact with "the fabric at o. positc' sides of the core and are; continual y pressed against the sides of theiabric, while @to'th'e sides of the core so; as to follow the l ntonrthereofthroughoutfi v 1. I The machneemhody'ing the invention is 'i provijdd with" spinners operating as above s :o'f'f-abi'ic are drawn lengthwise law the *fabricinto place. After the core with the middle of the'fabric fitted f Qinoved in thegehcral dirrition of their own l they arehei'ng moved inwardlywith relation snnmo nnvmn run rxn' nocnoessrs. i

Patented Sept. 17, 1918.

Applioa'tionfiled December 31, 1913. Serial No. 809385;

I described, the purpose of the invention being" to facilitate the movement of the spinners toward and from the axis of the core and alsoto provide the spinners with an auto matic feed throughout the entire movement toward the axis of-rotation of the core, at the same time leavin the lateral movement of the spinners whofiy under the control of the attendant,. the machine being provided with a manually operated device constituting the s ole means for-press'in the Wiper laterally 1nto contact withthe fsiliric.

The invention further relates to means whereby the originaldpoint of contact between the spinners and the fabric on the core IS automatically controlled; and also to means for producing a rapid feed movement of the spinners towurd thc core, followed by a' slowcr movement after the spinncrsare in engagement with the core and perform-f ing the function required. p I have used the term sp1nnersfor convenienco throughout the specification and claims; and l. wishit to be understood that I mean by this term any device which is capable of ,bein'gnsed to-press thcfabric toward and into firm contact with the surface to which it is to conform, and at the same time to have a continuously changing position with relation to the surface of thefabric so that the pressure is distributed over the said. surface during the shapingoporation. Apart from these general. cha-lfac teristics, the specific form of s i'nner which is used may be Widely modifie ivvithout departing from this invention. 1

Figure 1 isa plan view partly in section, of a portion of a tire building machine'emhody'ing the invention; Fig 2 is a side ,ele

vation of the same, partly in section; fand Fig" 3 is a sectional dctall taken on line a? i of Fig. 1, on a larger scale.

fabric is being laid around the periphery,

after which it is adapted to be driven at a relati*?e1y high speed while the sides 0f the fabri'c arejsmhothedinto contact with the :sides of the core, this,

beingolditl .the aft.- 1

"In accordance with the present invention,

mode operation l i i i the smoothing of the strip of fabric is accomplished by the action of the spinners 2 which consist of (llSks mounted so as to be free to rotate at the ends of arms 3 pivotally mounted at 4, on a traveling carriage 5 which is adapted to be moved toward and from the periphery of the core in a direction transverse to the axis of .rotation thereof.

In the construction shown, 1 utilize fluid pressure to operate the carriage 5; and the said carriage is shown as connected by a link 6 With a lever 7, which has a cross bar 8, pivoted on a portion of the frame of the machine, one end of said cross bar being connected with a piston rod 9 While the other end of said cross bar is connected through a sprin 10 with a fixed art of the apparatus. The piston rod 9 connected with a piston 12 inside of a cylinder 13 which has a duct ll leading into it above the piston 12. The said duct is supplied with fluid pres-sure, compressed air being preferably used, and is cmitrollcd by means of a three way cock 13 which is adapted to admit the pressure when ip the position shown, or to allow the pressure to escape through an exhaust passage 16, when given a quarter turn.

The piston is single acting, that is, movable in one direction only in response to the pressure, the opposite end of the cylinder beingpmvided with a vent passage 17. When the three way cock is turned to admit pressure-t0 the cylinder 13 the. iston 12 is fopeed downward; and throug the action Qfthe lever 7 moves the carriage 5 forwardso as to bring the wipers 2- into proximity to the core 1.

For the purpose of controlling the movement so that the Wi ers will move rapidly until they come near y into contactwith the fabric, and afterward. move slowly during the wipingdn" operation, the piston 12 is conneetedflwith a dash-pot piston 18, which is shown as directly connected with the piston rod 9 and located in alinement with the cylinder 13. 'The daslnpot piston 18 travels in a. cylinder 19 which is partially filled with some" slow flowing liquid, such as glycerin or oi1,--a.nd the inner Wall of the cylinder 19- is provided with a pocket 20 l of suflicient capacity to: allow the liquid to I be freely displaced by the piston 18 during "the'f-ull pressure is turned on.

parli'of the movementthereof, said pocket icing so located that the first part of the movement is comparatively free, although sufficiently checked to prevent s'hockswhen of the-movement is, therefore, comparatively rapid and the parts are'so c'si'gnedthat i at the end of this rapid movement the wi erswill be almost in contact with the fa ric onthe core. 65

- At the end of this part of the movement,

This part the dash- )ot piston 18 will pass beyond the lower end of the pocket 20 so that the oil in the cylinder 19 can no longer pass through the said pocket. In order, how ever, that the piston 18 may continue its travel, the dash-pot is provided with a cont paratively small by-pass 521 of sufficient capacity to admit of the piston movement, although the resistam-e is greatly increased. This-'lzy-pass 21 is shown as rovided with an adJustable valve 22, so t at the speed of the carriage during this art of the operation can be regulated. 'Fhc forward movement of the carriage 5 is limited by means of an adjustable stop 23 which comes in contact with a bumper 24. After'thc operation has been finished, the carriage is restored 'to its'ioriginal position by turning the three way cook 15 to allow the pressuri-v to exhaust from the cylinder 13 so that the action of the spring 10 is unimpeded. Furthermore, the piston 18 is provided with a number of vent orifices 25 controlled by a check valve 26 which allows the piston to travel freely through the liquid in the cylinder.

In order that the spinners 2 may always meet the core in the same position relative thereto, the said spinners are held in the position shown in Fig. 1 during the preiminary feed movement, by means of ad justable stops 27 at opposite sides of the support 28 on which the wiper carriage travels, the said stops cnga ing the ends of the pivoted levers 3 whic are held in engagement with the stops through the agency of a manually operated device, herein shown as a rotatable rod 2-9 having oppositely inclined screw threads engaging .With internally threaded nuts 30 swiveled on the levers 3, the said rod being provided with a hand wheel 31, which is connected with the rod bya yielding connecting device such as a spring 32.

In the construction shown the hand Wheel 31 has a free bearing on-the rotatable rod 29, motion tbein transmitted fromfth hand wheel to the re through the spiral spring 32, one end of which is connected to the hand. wheel and the other end t'othe' rod; The rod is provided at the middle with a formed in a block 35 mounted on the carriage, the notch being somewhat wider than the'disk thus alfording an o1. portunit for a. certain play in the operation-of the evei's and. wipers so that these parts can disk 33 which projects into a notch 34 adgust themselves to irregularities in the sin ace of the fabric tio'n.' 1 t v At thefend of the spinning-in operation when the parts, are to be restored to the during the spinning-in operar starting position, the hand: wheel is re leased and 'the spinners are then auto"- matically spread apart throughthc. action said spinners dur' wheel and exerts pressure thereon tendingto turn the soidmheel. He thenopensthe preswhioh I the oanringe moves sure cook, 11 forward-mp5? "until the spnvners aro heu'ly in. contact wit the llabrio on therein, thethe first part of the movement being posltively held In a certain pro-determined positionwith relation to the core by the adjustable stops 27. As the carriage continues its forwardmovement the spinner lovers are released by the stops and the spinners come into contact Withthe fabric through the pressure exerted on the hand Wheel and this initial position of contort with relation to the sure is the same at o vor v operation, As the spinners travel alongthe surface of the core they are necessarily spread apart, to admit of whinh movements the attendst allows the hand wheel to more hnokwsrd, the pressure which he exerts in resistance tothis. movement being dependentupon his judgment. The lay which is provi ler l= for by the disk 33 a1 ows thofspi-nnors to adjust themselves to slight irregularities 1D. the sunrises of the fabric while the spring 32 relieves the attendant of the vibration.

After-the spinners have passed. the widest part of the core, the pressure upon the, fabric is moi-attained by turningthe hand wheeland the on-rriageis. finally stopped at the end of its movement by the bnmger 2.4.. This. finishes theoperntioin The handle isthmus,- lensed, allowing the spinnens to spread apartand the carriage is restored by the action ov the spring 120 after manipulating the. three: way one]; which controls the pressure.

Whet I elaimis: r

1. In a tire-huilding machine,,'the combination with a rotatable core adaptedi to reooive a strip of fabric; of s s9inner;-meens includinga pressure-fluid operated device for outon'iatically moving'said sninner to N word the axis-otrotation of the core and also for constantly maintaining it in yielding angngemont with theoore; and :1 manually operated device associated with the spinnpr n'nd' oonsti tut] ng ind onendont means for pFBSHlMg itinto contact with the fabric onv the core. i I Y i '2. In a tirebuilding Zll'lfiClllllt'}, the oombination with a core adeptod to receive a, strip.

iifiiiabrio; of a spinner; moons lionautoinaticall moving SELld spinner toward the? arms of t 1e core; means for oxert n pressureon said spinner tending to move itftoward the side of theses-stand means for' preventix'i'g' the efi'ecrnul operation, ofsaid pressure unti the spinners Glens the;

he spinner is nearly inoontaot' vvith the.

fhlbric on thooore 3. Tho'comlnnation with a shopmgcore;

0133i spinner; means for automatically movthespinner movement; and means justin said stops.

5i, e combination with a shmpin core; of a spinner mounted. on a pivotal-y sup. ported lever movable toward tho-axis of the core; means for rocking said lever on its pivot to move the spinner toward theside of the core; and a: stop? to prevent the rocking movement oi? the lever throughout a portion of its movement toward the axis of the core.

6; The combination with a shaping core; of aspirmer; a carriage for said spinner; means. for moving said carriage toward the axis of said cor-e g, and means for controlling said movement whereby that port of the llloiqlfllllellll which-brings the s inner nearly to. the core-is moro mpidthan t a subsequent movement. l

7. The, combination with a sh ing of a. spinner; e oarriai-ge for,- ,saiid meansfor moving said carriage tower movement wherebythat pair-t oi the-movenenh which bringsv the spinner nearly to-the tooreiismore rapid tharnthe silbseqnent movement; and means for. restoring. the carriage.

i in -o iginal position, after the operation; hoibeon finished,

1' v n thi r tatablesna PRFGQiB; at a traveling carni a aid device during the firstpart 0 the spinner movement,

. T the," oxisoi said oore;'mea,ns for controlling siiid' screw-thneaded rod cooperating w. 1th.,the levors to, draw the spinners toward each:

other; and. stops limiting them'ovement of said, screw-threaded rod durings portion only of the movement of, the, carriage.v

9. In. a tire'bnilrling machine; the combination. with a spinner carriage; of an. actuating device for said carriage adapted to be operated by s, constant pressure; and means for oontrolling, the rate of movement pf said carriage which consistsof no dosh 15st having a; cylinder; and piston, and miiami tor permitting a; relatively free nioveihentofi said piston during a portion of its movement in the (lash pot; and for restrictin said movement during another part thcreo 10. In a tire building machine, the combination with a spinner carriage; oil a cylin der adapted to receive fluid pressure; a piston in said cylinder and connected With said carriage to produce the .rnovenient thereof; a dash pot cylinder; a piston in. the said dash pol; cylinder connected With the main piston; a pocket in said cylinder adapted to admit of a comparatively free displacement of the liquid in the dash pot during a portion of the dash pot piston movement; a restricted by-pass around the said pocket in the direc; tion' of movement-of the dash pot; and means for adjusting the capacity of said by-pass, substantially described.

1.1. II" a tire building machine, the combituition vwl'tl'l a spinner carriage; of a cylin der adapted to receive fluid pressure; a piston connected with said carriage to product!- the movement thereof; u dash pot cylinder; a pi tim in the said dash pot cylinder conl with the main piston; a pocket in said -r mhq'ited to admit of a free displacemen? of the liquid in the dash pot during a portion of the dash pot piston movement; a restricted by pass beyond the said pocket in the direction of movement of the piston; and means for adjusting the capacity of said by ass. p 12. In a tire building machine, the combination with a spinner arriage; of a cylinder adapted toreceive 11 id pressure; a piston connected. With said carriage to produce the movement thereof; a dash pot cylinder; a piston in the said dash pot cylinder e0nnected with the main piston; a pocket in said cylinder adapted to admit of a free displace mcnt of the liquid in the dash pot during a portion of the dash pot piston movement; a restricted lay-pass beyond the said pocket in the direction of movement of the piston; means for adjusting the capacity of said bypass; and a spring adapted to cause the movement of the carriage in the opposite direction. i 13. In tire building machine, the combination with. a spinner carriage of a cylinder,

adapted to receive fluid pressure; a piston connected with said carriage to produce the movement thereof; a dash pot cylinder; at

piston in thc,said dash pot cylinder con.- nected with the main piston; a pocket in said cylinder adapted to admit of a. free displacement ofthc liquid in the dash pot during a portion of the dash pot piston movement; a restricted by-pass beyond the said pocket in the direction of movement of the piston; meansfor adjusting the capacity of: said by pass; a spring adapted. to cause the movement of the carriage in the oppositcdirectipn; check valve in the dash pot pisflgl to permit-the same to pass freely through the liquid in the dash-pot while the spring is acting,

14. In a tire building machine, the combination with a spinner; of a rotatable shaping core; auton'mtic means for moving said spinner toward the axis of said core; and liquid means for regulating the movement of said spinner toward said core.

515. In a tire building machine, the combiniition with. a rotatable shaping core; of a spinner; a fluid pressure operated device for moving said spinner toward said core; and liquid means for regulating the movement of said spinner.

' 16. In a tire building machine, the combination with a spinner carriage; of one or more spinners mounted thereon; a fluid pressure motor adapted to operate the said carriage; and a dash pot to control the move ment of said carriage When acted upon by said motor.

17. In. a tire building machine, the combination with a rotatable core adapted to receive a strip of fabric, of a. spinner; pres sure-fluid operated means for automatically mo ing said spinner toward the of rotation of the core and for then maintaining said spinner constantly in yielding engagement with such fabric; means for yieldingly liolding said spinner away from the core; and a manually operated device for pressing said spinner into contact with the fabric on the core.

18. A. tire-making machine including a support, a carriage thereon, a tire-form juxtaposed to the support, power-operated means comprising fluid-pressure operated mechanism for advancing the carriage to- Ward the form, power-operated means for returning it to normal position, and a pressing-member on the carriage normally out of contact with the form and positionable into contacting relation with the {form by said pressure-operated mechanism and whereby it is maintained in yielding cngagement with fabric on the form.

19. Av tire-making machine including a support, a carriage thereon, a tire-form juxtaposcd to the support, fluidepressure oper-.

atcd means for advancing the carriage tm ward the form, means for arresting such ad-- vanoing movement of the carriage, a; spring motor for returning it to normal posltlon,

and a pressing member on the carriage normally oht of contact with the form and positionable into conta ctmg relation with the form by said pressure-operated mechanism and whereby it is maintained in yielding en-f gagement with fabric on the form. 20. A tire-making machine including a tire-core, a. carriage movable in relation thereto, fabric-pressing devices on the car- I riage, means for moving said devices in rela-' 'tion to each other, and pressure-fluid operating means for advancing the carriage -to-' ward the core, and for maintaining said pressing devices in yielding engagement therewith.

21. A tire-making machine including a tire-core, a carriage movable in relatlon thereto, fabric-pressing'devices on the carriage, and pressure-fluid operating means for advancing the carriage toward the core' to engage said pressing devices therewith and for simultaneously maintaining said devices in yielding engagement with the core. 22. A tire-making machine including a tire-core, a carriage movable in relation thereto, fabric-pressing devices on the carriage and normally out of contact with the core, and pressure-fluid operating means for advancing the carriage toward the core to effect engagement therewith of said pressing devices and, then, for simultaneously maintainin said devices in yielding engagement with abrie on the core.

23. A tire-making machine including a tire-core, a carriage movable in relation thereto, fabric-pressing devices on the car- 25 riage and normall out of contact with the core, pressure-Hui operated means for .advancing the carriage'toward the core to effeet active engagement therewith of the ressing devices, said means also operating, 80

gafiement with fabric on the core, and manua y operated means active on said devices and operable independently of the movement of the carriage and durin the advancing movement of the carriage oractuating the devices relatively. v

24. A tire-maln'ng machine including a tire-c'ore, a carriage movable in relation thereto, fabric-pressing devices on the carriage, and means for efiecting advancing movement of the carriage towar the core including instrumentalities for eflecti different speeds of the carriage at di erent stages of its travel toward the core. I

25. A tire-making-machine including a tiiecore, .a carriage movable in relation thereto, fabric-pressing devices on the carriage, means for effecting advancing move' ment of the carriage toward the core ncludpp ing instrumentalities for efiectm dlfierent j speeds of the carriage at difi'erent stages of 1 its traveltoward the core, and independent l means for returning the carriage to startlng position; I

saw .26. A tire-making machine including a tire-core, a carriage movable in relation therefabric-pressing devices on the carriage, pressure-fluid operated means for efiectmg.

. advancing movement of the carriage toward co the core, and means for efiecting difierent thereto, fabric-pressing devices on en, to maintain said devices in yielding enmeans for returning the carriage t0 position.

28. A tire-making machine including a tire-core, a ,carriage movable in. relation the carriage, pressure-fluid operated means for effectin advancing movement'of the carriage towar the core, means for effecting difierent speeds of the carriage at diflerent stages of its travel toward the core, and means for varying the operation of said 'speed-control- -ling instrumentalities.

29. A tire-making machine including a tire-core, a carriage movable ;in relation thereto, pressure-flmd operated means for efa footing an advancing movement onlyof the carri e toward the core, means for automatica 1y arresting the carriage at a point in predetermined relation to the core, and power-operated means for effecting a receding. movement of the carnage.

30. A tire-making machine including a tire-core, a carriage movable in' relation thereto, pressure-fluid operated means for effecting an advancing movement only of the carriage toward the core, means for varying the speed of the carriage during such advancing movement, means for automatically arrestin the carriage at a point in predetermine relation to the core, and poweroperated means for efiecting a receding movement of the carriage.

31. A tire-making machine. including a tire-core, a carriage movable in relation. thereto, pressure-fluid operated means for efiecting an advancing movement only of the carriage toward the core, means forvarylrgz the speed of the carriage during sue I vancing movement, means for automatioally-"' arresting the carriage at a pomt 1n predetermined relation to. the core and a quick- H a returningmeans active on to carriage to efiect a receding movement thereof.

In testimonywhereof, I have signed my name to this specification in the presence of two subscrib' DERIC C. MORTON.

. Jim.- J. m,

M1 LMAnom 

